22064729 has 2 divisors, whose sum is σ = 22064730. Its totient is φ = 22064728.

The previous prime is 22064717. The next prime is 22064753. The reversal of 22064729 is 92746022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11042329 + 11022400 = 3323^2 + 3320^2 .

It is a cyclic number.

It is not a de Polignac number, because 22064729 - 2⁸ = 22064473 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22064695 and 22064704.

It is not a weakly prime, because it can be changed into another prime (22061729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11032364 + 11032365.

It is an arithmetic number, because the mean of its divisors is an integer number (11032365).

Almost surely, 2^22064729 is an apocalyptic number.

It is an amenable number.

22064729 is a deficient number, since it is larger than the sum of its proper divisors (1).

22064729 is an equidigital number, since it uses as much as digits as its factorization.

22064729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 22064729 is about 4697.3108264197. The cubic root of 22064729 is about 280.4784718741.

The spelling of 22064729 in words is "twenty-two million, sixty-four thousand, seven hundred twenty-nine".